src/pan-view/pan-calendar.cc

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "pan-calendar.h"
  23
  24 #include <cmath>
  25
  26 #include "misc.h"
  27 #include "pan-util.h"
  28 #include "pan-view.h"
  29 #include "pan-view-filter.h"
  30 #include "pixbuf-util.h"
  31
  32 #define PAN_CAL_POPUP_COLOR 220, 220, 220
  33 enum {
  34         PAN_CAL_POPUP_ALPHA = 255,
  35         PAN_CAL_POPUP_BORDER = 1
  36 };
  37 #define PAN_CAL_POPUP_BORDER_COLOR 0, 0, 0
  38 #define PAN_CAL_POPUP_TEXT_COLOR 0, 0, 0
  39
  40 enum {
  41         PAN_CAL_DAY_WIDTH = 100,
  42         PAN_CAL_DAY_HEIGHT = 80
  43 };
  44
  45 #define PAN_CAL_DAY_COLOR 255, 255, 255
  46 enum {
  47         PAN_CAL_DAY_ALPHA = 220,
  48         PAN_CAL_DAY_BORDER = 2
  49 };
  50 #define PAN_CAL_DAY_BORDER_COLOR 0, 0, 0
  51 #define PAN_CAL_DAY_TEXT_COLOR 0, 0, 0
  52
  53 #define PAN_CAL_MONTH_COLOR 255, 255, 255
  54 enum {
  55         PAN_CAL_MONTH_ALPHA = 200,
  56         PAN_CAL_MONTH_BORDER = 4
  57 };
  58 #define PAN_CAL_MONTH_BORDER_COLOR 0, 0, 0
  59 #define PAN_CAL_MONTH_TEXT_COLOR 0, 0, 0
  60
  61 enum {
  62         PAN_CAL_DOT_SIZE = 3,
  63         PAN_CAL_DOT_GAP = 2
  64 };
  65 #define PAN_CAL_DOT_COLOR 128, 128, 128
  66 enum {
  67         PAN_CAL_DOT_ALPHA = 128
  68 };
  69
  70 #define PAN_CAL_DAY_OF_WEEK_COLOR 128, 128, 128
  71
  72 /*
  73  *-----------------------------------------------------------------------------
  74  * calendar
  75  *-----------------------------------------------------------------------------
  76  */
  77
  78 void pan_calendar_update(PanWindow *pw, PanItem *pi_day)
  79 {
  80         PanItem *pbox;
  81         PanItem *pi;
  82         GList *list;
  83         GList *work;
  84         gint x1, y1, x2, y2, x3, y3;
  85         gint x, y, w, h;
  86         gint grid;
  87         gint column;
  88
  89         while ((pi = pan_item_find_by_key(pw, PAN_ITEM_NONE, "day_bubble"))) pan_item_remove(pw, pi);
  90
  91         if (!pi_day || pi_day->type != PAN_ITEM_BOX ||
  92             !pi_day->key || strcmp(pi_day->key, "day") != 0) return;
  93
  94         list = pan_layout_intersect(pw, pi_day->x, pi_day->y, pi_day->width, pi_day->height);
  95
  96         work = list;
  97         while (work)
  98                 {
  99                 PanItem *dot;
 100                 GList *node;
 101
 102                 dot = static_cast<PanItem *>(work->data);
 103                 node = work;
 104                 work = work->next;
 105
 106                 if (dot->type != PAN_ITEM_BOX || !dot->fd ||
 107                     !dot->key || strcmp(dot->key, "dot") != 0)
 108                         {
 109                         list = g_list_delete_link(list, node);
 110                         }
 111                 }
 112
 113         grid = static_cast<gint>(sqrt(g_list_length(list)) + 0.5);
 114
 115         x = pi_day->x + pi_day->width + 4;
 116         y = pi_day->y;
 117
 118         pbox = pan_item_box_new(pw, nullptr, x, y, PAN_BOX_BORDER, PAN_BOX_BORDER,
 119                                 PAN_CAL_POPUP_BORDER,
 120                                 PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA,
 121                                 PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 122         pan_item_set_key(pbox, "day_bubble");
 123
 124         if (pi_day->fd)
 125                 {
 126                 PanItem *plabel;
 127                 gchar *buf;
 128
 129                 buf = pan_date_value_string(pi_day->fd->date, PAN_DATE_LENGTH_WEEK);
 130                 plabel = pan_item_text_new(pw, x, y, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 131                                            PAN_BORDER_3,
 132                                            PAN_CAL_POPUP_TEXT_COLOR, 255);
 133                 pan_item_set_key(plabel, "day_bubble");
 134                 g_free(buf);
 135
 136                 pan_item_size_by_item(pbox, plabel, 0);
 137
 138                 y += plabel->height;
 139                 }
 140
 141         if (list)
 142                 {
 143                 column = 0;
 144
 145                 x += PAN_BOX_BORDER;
 146                 y += PAN_BOX_BORDER;
 147
 148                 work = list;
 149                 while (work)
 150                         {
 151                         PanItem *dot;
 152
 153                         dot = static_cast<PanItem *>(work->data);
 154                         work = work->next;
 155
 156                         if (dot->fd)
 157                                 {
 158                                 PanItem *pimg;
 159
 160                                 pimg = pan_item_thumb_new(pw, file_data_ref(dot->fd), x, y);
 161                                 pan_item_set_key(pimg, "day_bubble");
 162
 163                                 pan_item_size_by_item(pbox, pimg, PAN_BOX_BORDER);
 164
 165                                 column++;
 166                                 if (column < grid)
 167                                         {
 168                                         x += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 169                                         }
 170                                 else
 171                                         {
 172                                         column = 0;
 173                                         x = pbox->x + PAN_BOX_BORDER;
 174                                         y += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 175                                         }
 176                                 }
 177                         }
 178                 }
 179
 180         x1 = pi_day->x + pi_day->width - 8;
 181         y1 = pi_day->y + 8;
 182         x2 = pbox->x + 1;
 183         y2 = pbox->y + MIN(42, pbox->height);
 184         x3 = pbox->x + 1;
 185         y3 = MAX(pbox->y, y2 - 30);
 186         util_clip_triangle(x1, y1, x2, y2, x3, y3,
 187                            &x, &y, &w, &h);
 188
 189         pi = pan_item_tri_new(pw, nullptr, x, y, w, h,
 190                               x1, y1, x2, y2, x3, y3,
 191                               PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA);
 192         pan_item_tri_border(pi, PAN_BORDER_1 | PAN_BORDER_3, PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 193         pan_item_set_key(pi, "day_bubble");
 194         pan_item_added(pw, pi);
 195
 196         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
 197         pan_item_added(pw, pbox);
 198
 199         pan_layout_resize(pw);
 200 }
 201
 202 void pan_calendar_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
 203 {
 204         GList *list;
 205         GList *work;
 206         gint x, y;
 207         time_t tc;
 208         gint count;
 209         gint day_max;
 210         gint grid;
 211         gint year = 0;
 212         gint month = 0;
 213         gint end_year = 0;
 214         gint end_month = 0;
 215         gint day_of_week;
 216
 217         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, TRUE, pw->ignore_symlinks);
 218         pan_filter_fd_list(&list, pw->filter_ui->filter_elements, pw->filter_ui->filter_classes);
 219
 220         if (pw->cache_list && pw->exif_date_enable)
 221                 {
 222                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE, TRUE);
 223                 list = filelist_sort(list, SORT_NAME, TRUE, TRUE);
 224                 pan_cache_sync_date(pw, list);
 225                 }
 226
 227         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE, TRUE);
 228         list = filelist_sort(list, SORT_TIME, TRUE, TRUE);
 229
 230         day_max = 0;
 231         count = 0;
 232         tc = 0;
 233         work = list;
 234         while (work)
 235                 {
 236                 FileData *fd;
 237
 238                 fd = static_cast<FileData *>(work->data);
 239                 work = work->next;
 240
 241                 if (!pan_date_compare(fd->date, tc, PAN_DATE_LENGTH_DAY))
 242                         {
 243                         count = 0;
 244                         tc = fd->date;
 245                         }
 246                 else
 247                         {
 248                         count++;
 249                         if (day_max < count) day_max = count;
 250                         }
 251                 }
 252
 253         DEBUG_1("biggest day contains %d images", day_max);
 254
 255         grid = static_cast<gint>(sqrt(static_cast<gdouble>(day_max)) + 0.5) * (PAN_THUMB_SIZE + PAN_SHADOW_OFFSET * 2 + PAN_THUMB_GAP);
 256
 257         if (list)
 258                 {
 259                 auto fd = static_cast<FileData *>(list->data);
 260
 261                 year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 262                 month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 263                 }
 264
 265         work = g_list_last(list);
 266         if (work)
 267                 {
 268                 auto fd = static_cast<FileData *>(work->data);
 269                 end_year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 270                 end_month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 271                 }
 272
 273         *width = PAN_BOX_BORDER * 2;
 274         *height = PAN_BOX_BORDER * 2;
 275
 276         x = PAN_BOX_BORDER;
 277         y = PAN_BOX_BORDER;
 278
 279         work = list;
 280         while (work && (year < end_year || (year == end_year && month <= end_month)))
 281                 {
 282                 PanItem *pi_month;
 283                 PanItem *pi_text;
 284                 PanItem *pi_day_number;
 285                 gint day;
 286                 gint days;
 287                 gint col;
 288                 gint row;
 289                 time_t dt;
 290                 gchar *buf;
 291
 292                 /* figure last second of this month */
 293                 dt = pan_date_to_time((month == 12) ? year + 1 : year, (month == 12) ? 1 : month + 1, 1);
 294                 dt -= 60 * 60 * 24;
 295
 296                 /* anything to show this month? */
 297                 if (!pan_date_compare((static_cast<FileData *>(work->data))->date, dt, PAN_DATE_LENGTH_MONTH))
 298                         {
 299                         month ++;
 300                         if (month > 12)
 301                                 {
 302                                 year++;
 303                                 month = 1;
 304                                 }
 305                         continue;
 306                         }
 307
 308                 days = pan_date_value(dt, PAN_DATE_LENGTH_DAY);
 309                 dt = pan_date_to_time(year, month, 1);
 310                 col = pan_date_value(dt, PAN_DATE_LENGTH_WEEK);
 311                 col = col - (date_get_first_day_of_week() - 1);
 312                 if (col < 0) col = col + 7;
 313                 row = 1;
 314
 315                 x = PAN_BOX_BORDER;
 316
 317                 pi_month = pan_item_box_new(pw, nullptr, x, y, PAN_CAL_DAY_WIDTH * 7, PAN_CAL_DAY_HEIGHT / 4,
 318                                             PAN_CAL_MONTH_BORDER,
 319                                             PAN_CAL_MONTH_COLOR, PAN_CAL_MONTH_ALPHA,
 320                                             PAN_CAL_MONTH_BORDER_COLOR, PAN_CAL_MONTH_ALPHA);
 321                 buf = pan_date_value_string(dt, PAN_DATE_LENGTH_MONTH);
 322                 pi_text = pan_item_text_new(pw, x, y, buf,
 323                                             static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 324                                             PAN_BORDER_3,
 325                                             PAN_CAL_MONTH_TEXT_COLOR, 255);
 326                 g_free(buf);
 327                 pi_text->x = pi_month->x + (pi_month->width - pi_text->width) / 2;
 328
 329                 pi_month->height = pi_text->y + pi_text->height - pi_month->y;
 330
 331                 x = PAN_BOX_BORDER + col * PAN_CAL_DAY_WIDTH;
 332                 y = pi_month->y + pi_month->height + PAN_BOX_BORDER;
 333
 334                 for (day = 1; day <= days; day++)
 335                         {
 336                         FileData *fd;
 337                         PanItem *pi_day;
 338                         gint dx, dy;
 339                         gint n = 0;
 340                         gchar fake_path[20];
 341
 342                         dt = pan_date_to_time(year, month, day);
 343
 344                         /*
 345                          * Create a FileData entry that represents the given day.
 346                          * It does not correspond to any real file
 347                          */
 348
 349                         g_snprintf(fake_path, sizeof(fake_path), "//%04d-%02d-%02d", year, month, day);
 350                         fd = file_data_new_no_grouping(fake_path);
 351                         fd->date = dt;
 352                         pi_day = pan_item_box_new(pw, fd, x, y, PAN_CAL_DAY_WIDTH, PAN_CAL_DAY_HEIGHT,
 353                                                   PAN_CAL_DAY_BORDER,
 354                                                   PAN_CAL_DAY_COLOR, PAN_CAL_DAY_ALPHA,
 355                                                   PAN_CAL_DAY_BORDER_COLOR, PAN_CAL_DAY_ALPHA);
 356                         pan_item_set_key(pi_day, "day");
 357
 358                         dx = x + PAN_CAL_DOT_GAP * 2;
 359                         dy = y + PAN_CAL_DOT_GAP * 2;
 360
 361                         fd = static_cast<FileData *>((work) ? work->data : nullptr);
 362                         while (fd && pan_date_compare(fd->date, dt, PAN_DATE_LENGTH_DAY))
 363                                 {
 364                                 PanItem *pi;
 365
 366                                 pi = pan_item_box_new(pw, fd, dx, dy, PAN_CAL_DOT_SIZE, PAN_CAL_DOT_SIZE,
 367                                                       0,
 368                                                       PAN_CAL_DOT_COLOR, PAN_CAL_DOT_ALPHA,
 369                                                       0, 0, 0, 0);
 370                                 pan_item_set_key(pi, "dot");
 371
 372                                 dx += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 373                                 if (dx + PAN_CAL_DOT_SIZE > pi_day->x + pi_day->width - PAN_CAL_DOT_GAP * 2)
 374                                         {
 375                                         dx = x + PAN_CAL_DOT_GAP * 2;
 376                                         dy += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 377                                         }
 378                                 if (dy + PAN_CAL_DOT_SIZE > pi_day->y + pi_day->height - PAN_CAL_DOT_GAP * 2)
 379                                         {
 380                                         /* must keep all dots within respective day even if it gets ugly */
 381                                         dy = y + PAN_CAL_DOT_GAP * 2;
 382                                         }
 383
 384                                 n++;
 385
 386                                 work = work->next;
 387                                 fd = static_cast<FileData *>((work) ? work->data : nullptr);
 388                                 }
 389
 390                         if (n > 0)
 391                                 {
 392                                 PanItem *pi;
 393
 394                                 pi_day->color_r = MAX(pi_day->color_r - 61 - n * 3, 80);
 395                                 pi_day->color_g = pi_day->color_r;
 396
 397                                 buf = g_strdup_printf("( %d )", n);
 398                                 pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 399                                                        PAN_BORDER_3,
 400                                                        PAN_CAL_DAY_TEXT_COLOR, 255);
 401                                 g_free(buf);
 402
 403                                 pi->x = pi_day->x + (pi_day->width - pi->width) / 2;
 404                                 pi->y = pi_day->y + (pi_day->height - pi->height) / 2;
 405                                 }
 406
 407                         buf = g_strdup_printf("%d", day);
 408                         pi_day_number = pan_item_text_new(pw, x + 4, y + 4, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 409                                           PAN_BORDER_3,
 410                                           PAN_CAL_DAY_TEXT_COLOR, 255);
 411                         g_free(buf);
 412
 413                         day_of_week = date_get_first_day_of_week() + col;
 414                         if (day_of_week > 7) day_of_week = day_of_week - 7;
 415
 416                         buf = date_get_abbreviated_day_name(day_of_week);
 417                         pan_item_text_new(pw, x + 4 + pi_day_number->width + 4, y + 4, buf, PAN_TEXT_ATTR_NONE,
 418                                           PAN_BORDER_3,
 419                                           PAN_CAL_DAY_OF_WEEK_COLOR, 255);
 420                         g_free(buf);
 421
 422                         pan_item_size_coordinates(pi_day, PAN_BOX_BORDER, width, height);
 423
 424                         col++;
 425                         if (col > 6)
 426                                 {
 427                                 col = 0;
 428                                 row++;
 429                                 x = PAN_BOX_BORDER;
 430                                 y += PAN_CAL_DAY_HEIGHT;
 431                                 }
 432                         else
 433                                 {
 434                                 x += PAN_CAL_DAY_WIDTH;
 435                                 }
 436                         }
 437
 438                 if (col > 0) y += PAN_CAL_DAY_HEIGHT;
 439                 y += PAN_BOX_BORDER * 2;
 440
 441                 month ++;
 442                 if (month > 12)
 443                         {
 444                         year++;
 445                         month = 1;
 446                         }
 447                 }
 448
 449         *width += grid;
 450         *height = MAX(*height, grid + PAN_BOX_BORDER * 2 * 2);
 451
 452         g_list_free(list);
 453 }
 454 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */